Sash-lock.



C. PARSONS.

SASH LOCK.

APPLICATION TILED JULY 17, 1911.

1,023,391. 1 1 Patented Apr. 16, 1912.

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CLARA PARSONS, OF SEATTLE, WASHINGTON.

SASI-I-LOCK.

Specification of Letters Patent.

Patented. Apr. 16, 1912.

Application filed July 17, 1911. Serial No. 638,876.

To all whom it may concern Be it known that I, CLARA PARSONS, a subjectof the King of England, residing at Seattle, in the county of King andState of Washington, have invented certain new and useful Improvementsin Sash-Locks, of which the following is a specification.

The object of this invention is the provision of an efiicient andinexpensively constructed sash-lock which is adapted for securing atselected positions either or both of the sashes of a window.

The invention consists in a lock having two bolts which are arranged tobe respectively engaged in spaced holes provided in the window-frame andin a side bar of the upper sash; and a controller provided in the casingwhereby the bolts may be positively operated to engage or disengage themfrom the frame and sash holes.

In the accompanying drawings illustrating an embodiment of my invention,Figure 1 is a view partly in front elevation and partly in verticalsection of portions of a window with my invention applied thereto. Figs.2 and 3 are sectional views taken through X--X of Fig. 1 andrepresenting in the former the lower sash locked to the window-frame,and in Fig. 3 the lower sash is shown as locked to both the windowframeand to the upper sash. Fig. 4 is a plan View of the lock shown detached.Fig. 5 is a perspective view of one of the lock bolts. Fig. 6 is aperspective View of the cover of the lock casing.

The reference numeral 1 designates a side bar of a window-frame; 2 isthe meeting rail of the lower sash; and 3 is a side bar of the uppersash. The side bar of the window frame is provided with a series ofspaced holes 4: disposed one above the other, and the side bar 3 of theupper sash is similarly provided with spaced holes 5. The holes 4 and 5are desirably lined with socket pieces 4' and 5.

Secured by screws 6 to the rail 2 of the lower sash is a lock casing 7provided with openings 8 and 9 in its side and end walls 3 a d 9 for thea c mmoda n f b lts 10 and 11 so that the axes of the latter willrespectively correspond with the axes of the holes 4 and 5 when thesashes are positioned at suitable heights. Web pieces, as 12, Fig. 6,depend from the casing cover 7 to serve as guides for said bolts. Asshown in Figs. 1 and 5, the bolts are provided at their inner ends withdownwardly directed hooks 10 and 11.. Within the casing is theboltshifter 14 having two rectangularly arranged arms 14 and 14'. Saidshifter is provided with an L-shaped slot whose branches 15 and 16extend longitudinally of the shifter arms 14: and 14:", as shown inFigs. 2 and 3, for the reception of the aforesaid bolt hooks 10 and 11'.

17 is a stud rigidly secured to the bottom of the casing 7 and extendingupwardly into the shifter-slots.

18 is a knob whereby the shifter is manipulated and is connected to thelatter by a stem 18 which extends through a slot 19 provided in thecasing-cover 7.

The operation of the invention is as follows: By sliding the shifter 14:to the right or left the bolt 10 is correspondingly moved to project thebolt into or retract it from a hole 4 in the window frame 1. Duringthese movements of the shifter the bolt 11 must be in its inoperativeposition (see Fig. 2) so as to allow the shifter slot part 16 to be inalinement with the bolt hook 11 and the stud 17. When the bolt 10 hasbeen shot into a hole in the frame the stud 17 will occupy a position atthe juncture of the two slot parts 15 and 16, whence it allows theshifter to be moved into the position in which it is shown in Fig. 3 toaccordingly project the bolt 11 into a hole 5 of the upper sash, asrepresented in the view. The hooked ends 10 and 11 being slidablyengaged within the shifter slot permits of the bolts being individuallyand positively operated, as will be understood.

What I claim, is-

In a sash look, a casing, a bolt shifter of substantially L-shape andhaving an L- shaped slot therein, a relatively long and a relatively shrt bolt moun ed in. the casing at right angles to each other andprojectshaped slot, and Web pieces on the undering through the Walls ofthe casing, said neath face of the cover plate acting as bolts havinghooks at their inner ends enguides for said bolts. gaged with thebranches of the bolt shifter, CLARA PARSONS.

a cover plate for said casing having an L Witnesses? shaped slottherein, a stud connected to the PIERRE BARNES, bolt shifter andextending through said L- H. BARNES.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). 0.

